GTN 625/635/650 TSO Installation Manual
190-01004-02
Page 5-18
Rev. F
5.2.8 OBS
MAIN OBS ROTOR C and H (GND) are a buffered output that is intended to drive the OBS rotors. MAIN
OBS STATOR D and MAIN OBS STATOR F are each phase and amplitude shifted version of the MAIN
ROTOR C output. Each pair is intended to read one of the two windings of the indicator’s OBS stator.
5.2.9 Discrete Inputs
NOTE
Default settings for discrete inputs are shown in the table below. See Section 6.6.13 for
configuring discretes to perform another function.
An asterisk (*) following a signal name denotes that the signal is Active-Low, requiring a ground to
activate. If there is no asterisk, the signal is Active-High.
Active-low discrete inputs are considered active if either the voltage to ground is
≤
3.5 VDC or the
resistance to ground is
≤
375
. These inputs are considered inactive if the voltage to ground is
6.5-33 VDC or the resistance to ground is >100 k
.
Active-high discrete inputs are considered active if either the voltage to ground is >6.5 VDC. These inputs
are considered inactive if the voltage to ground is
≤
3.5 VDC or the resistance to ground is
≤
375
.
Pin Name
Connector
Pin
I/O
MAIN OBS ROTOR C
P1001
2
Out
MAIN OBS ROTOR H (GND)
P1001
1
--
MAIN OBS STATOR D
P1001
21
In
MAIN OBS STATOR E (GND)
P1001
40
--
MAIN OBS STATOR F
P1001
41
In
MAIN OBS STATOR G (GND)
P1001
60
--
Pin Name
Connector
Pin
I/O
OBS MODE SELECT*
P1001
16
In
AUDIO INHIBIT IN*
P1001
36
In
TAWS INHIBIT*
P1001
37
In
AIR/GROUND*
P1001
38
In
CDI SOURCE SELECT*
P1001
39
In
DEMO MODE SELECT*
P1002
1
In
SYSTEM ID PROGRAM*
P1002
10
In
GSR STATUS IN*
P1002
11
In
DAY/NIGHT*
--
--
In
MARK ON TARGET*
--
--
In
RP MODE*
--
--
In
REMOTE GO AROUND*
--
--
In
HTAWS ALERT ACKNOWLEDGEMENT*
--
--
In
Summary of Contents for GTN 625
Page 1: ...190 01004 02 February 2013 Revision F GTN 625 635 650 TSO Installation Manual ...
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Page 242: ...GTN 625 635 650 TSO Installation Manual 190 01004 02 Page D 36 Rev F Figure D 24 Reserved ...
Page 250: ...GTN 625 635 650 TSO Installation Manual 190 01004 02 Page D 44 Rev F Figure D 32 Reserved ...
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